shel·lac /ʃəˈlæk/
  蟲漆(vt.)塗上蟲漆,以蟲膠結合,毆打
  Shel·lac, Shell-lac n.
  1. Lac which has been reduced to a thin crust.  See the Note under 2d Lac.
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  shellac
       n 1: lac purified by heating and filtering; usually in thin
            orange or yellow flakes but sometimes bleached white
       2: a thin varnish made by dissolving lac in ethanol; used to
          finish wood [syn: shellac varnish]
       v : cover with shellac; "She wanted to shellac the desk to
           protect it from water spots"
       [also: shellacking, shellacked]